Answer:
sin ( 11π / 8 ) = sin ( π + 3 π/ 8 ) =
= - sin ( 3π/8 ) =
= - sin ( 3π/4 / 2 ) =
Step-by-step explanation:
How could you calculate 23 x 21 if the 2 button on your calculator is broken?
2 answers:
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Answer:
Good luck!
Intelligent Muslim,
From Uzbekistan.